<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <meta http-equiv="X-UA-Compatible" content="ie=edge" />
        <title>Document</title>
        <script src="jquery.min.js"></script>
    </head>

    <body>
        <video src="mov.mp4" muted></video>
        <script>
            // 1. DOM对象转换为 jQuery对象
            const video=document.querySelector(`video`)
            $(video)//jQuery对象
            console.log($(video))
            // 2. jQuery对象转换为DOM对象
            $(video)[0].play() //第一种jQuery对象[下标]
            $(video).get(0).play() //第二种jQuery对象.get(下标)
        </script>
    </body>
</html>
